"reader": {
    "name": "mysqlreader",
    "parameter": {
        "username": "${datax.dataSourceConfig.userName}",
        "password": "${datax.dataSourceConfig.password}",
        "column": [
            <#list fields as field>
            ${field.field},
            </#list>
        ],
        <#if table.isGeneratorExcelImport?has_content>
        "splitPk": "${datax.tableConfig.splitPk}",
        </#if>
        "connection": [{
            "table": [
                "${datax.tableConfig.tableName}"
            ,
            "jdbcUrl": [
                "${datax.dataSourceConfig.url}"
            ]
        }]
    }
}